Neumann KM56 Power Supply "NKM 1456
- Source: eBay
KM56 Power Supply, Not tested! i don't have a mic or cable to test it with and i don't know if turning it on with out them connected will hurt it. Sold as is so bid accordingly! your welcome to show up locally and test for yourself. i live in Greenpoint Brooklyn and work in Williamsburg. thanks and happy bidding!